The 4 p.m. coordinates placed the center of the storm near located near 28.4 north and 85. 8 west, about 205 miles east/southeast of the mouth of the Mississippi River. Debby is moving toward the northeast at 3 mph, about half the speed of earlier today.

Tropical storm warnings from the mouth of the Pearl River westward to Morgan City were discontinued after the latest update. "No signification motion" is expected in the next couple of days, the National Hurricane Center said, though it warned that its forecast continues to be uncertain.

Maximum sustained winds are near 60 mph, with higher gusts. Some slight strengthening is possible during the next 48 Hours.